Don't keep members of pointer or byref element types #106215
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sbomer
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Aug 20, 2024
sbomer
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Aug 20, 2024
| @@ -58,39 +58,32 @@ internal void MarkTypeForDynamicallyAccessedMembers (in MessageOrigin origin, Ty | |||
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| // Resolve a (potentially assembly qualified) type name based on the current context (taken from DiagnosticContext) and mark the type for reflection. | |||
| // This method will probe the current context assembly and if that fails CoreLib for the specified type. Emulates behavior of Type.GetType. | |||
| internal bool TryResolveTypeNameAndMark (string typeName, in DiagnosticContext diagnosticContext, bool needsAssemblyName, [NotNullWhen (true)] out TypeDefinition? type) | |||
| internal bool TryResolveTypeNameAndMark (string typeName, in DiagnosticContext diagnosticContext, bool needsAssemblyName, [NotNullWhen (true)] out TypeReference? type) | |||
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With the change to ResolveToTypeDefinition, TryResolveTypeNameAndMark now gives back a TypeReference representing the pointer/byref type. MarkTypeVisibleToReflection will go through MarkType that marks the underlying element type, but the call to MarkTypeForDynamicallyAccessedMembers from RequireDynamicallyAccessedMembersAction won't mark any of its members (because it resolves the pointer/byref to null via ResolveToTypeDefinition first).
jtschuster
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Aug 21, 2024
This was referenced Aug 23, 2024
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Aug 27, 2024
sbomer
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The equality check needs to determine whether two TypeProxy instances represent the same type. The check was incorrect when two different object instances were allocated to represent the same generic instantiated type. ILCompiler doesn't have this problem because it uses a cache to ensure that the same object instance represents a given instantiated generic type. Discovered while investigating #106215, see more context at #106215 (comment). The new testcase also uncovered an issue in the analyzer that was fixed in #106909.
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/ba-g "unrelated timeout" |
jtschuster
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Sep 17, 2024
Partial fix for one of the cases mentioned in dotnet#106886. This moves some of the tests to ObjectGetTypeDataflow.cs because ObjectGetType.cs is skipped by native AOT. Fixes an issue discovered while investigating dotnet#106215.
jtschuster
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Sep 17, 2024
The equality check needs to determine whether two TypeProxy instances represent the same type. The check was incorrect when two different object instances were allocated to represent the same generic instantiated type. ILCompiler doesn't have this problem because it uses a cache to ensure that the same object instance represents a given instantiated generic type. Discovered while investigating dotnet#106215, see more context at dotnet#106215 (comment). The new testcase also uncovered an issue in the analyzer that was fixed in dotnet#106909.
jtschuster
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Sep 17, 2024
Fixes the following warnings in ILLink:
```csharp
var type = Type.GetType ("ElementType&, test");
RequireConstructor(type); // IL2026
[RequiresUnreferencedCode("ElementType")]
class ElementType {}
static void RequireConstructor([DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)] Type type) { }
```
This warns for reflection access to the ElementType constructor, even
though the byref type has no constructor. NativeAot doesn't produce
this warning.
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Fixes #106214